ARM

Tag: LASIC

  • New Aerosol Hygroscopicity Kappa Data Available

    The hygroscopicity parameter kappa quantifies a particle’s capacity to take up water from the environment and activate into a cloud droplet. Kappa is often used to model the cloud condensation nuclei (CCN) activity of atmospheric aerosols of different sizes and compositions, providing additional insight into the influence of aerosols on climate. New data are available…

  • New Aerosol Hygroscopicity Kappa Data Released for 3 ARM Sites

    Hygroscopicity is the ability of a particle to take up moisture from the environment and is important for understanding the formation of cloud condensation nuclei (CCN). New data from a value-added product (VAP) that calculates the hygroscopic properties of measured aerosol particles are available for three Atmospheric Radiation Measurement (ARM) user facility sites. The CCN…

  • Cloud Droplet Number Concentration Product Updated

    New data are available from the Droplet Number Concentration value-added product (NDROP VAP), which has been updated to use additional inputs. This will allow NDROP to be available quicker with better retrievals and to be applied to more sites and more cloudy days. Cloud droplet number concentration is an important factor in understanding aerosol-cloud interactions.…

  • AERI Noise Filtered Data Available for MARCUS, LASIC Campaigns

    The Atmospheric Emitted Radiance Interferometer Noise Filtered (AERINF) value-added product (VAP) is now in production for two recent Atmospheric Radiation Measurement (ARM) user facility field campaigns: Measurements of Aerosols, Radiation, and Clouds over the Southern Ocean (MARCUS) between Australia and Antarctica from October 29, 2017, to March 23, 2018 Layered Atlantic Smoke Interactions with Clouds…

  • LASIC Findings Integral to Southeast Atlantic Workshop

    Editor’s note: From June 2016 through October 2017, ARM conducted the Layered Atlantic Smoke Interactions with Clouds (LASIC) field campaign on Ascension Island in the South Atlantic Ocean. LASIC focused on smoke aerosols from African biomass fires and their interaction with clouds while moving over the Atlantic. From mid-August to mid-September 2017, the U.K. CLoud-Aerosol-Radiation Interaction…

  • Cloud Microphysics VAP Evaluation Data Available for LASIC Field Campaign

    Cloud microphysical properties affect cloud radiative heating, precipitation formation, and aerosol-cloud interactions, among other important atmospheric processes. The first field campaign data are now available from a value-added product (VAP) that builds upon the Atmospheric Radiation Measurement (ARM) user facility’s historical Continuous Baseline Microphysical Retrieval (MICROBASE) VAP. The Improved MICROBASE Product with Uncertainties (MICROBASEKAPLUS) provides…

  • Radiation Data Quality VAP Expands to LASIC Field Campaign Site

    A new release for the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP) covers the mobile deployment to Ascension Island for the Layered Atlantic Smoke Interactions with Clouds (LASIC) field campaign. QCRAD has long been the Atmospheric Radiation Measurement (ARM) user facility’s recommended datastream for broadband surface irradiance measurements. The QCRAD methodology…

  • New Microwave Radiometer Retrievals VAP Data Available for Several ARM Campaigns and Sites

    The Microwave Radiometer Retrievals (MWRRET) value-added product (VAP) has been processed for the following Atmospheric Radiation Measurement (ARM) user facility field campaigns and measurement sites: the ARM North Slope of Alaska (NSA) central facility at Barrow, known officially as Utqiaġvik, for the years 2014 through 2017 the ARM Southern Great Plains (SGP) Central Facility near…

  • ARM Cloud Radar-Remote Sensing Evaluation Data Available for LASIC Campaign

    Evaluation data for the W-Band ARM Cloud Radar-Active Remote Sensing of Clouds (WACR-ARSCL) value-added product are now available for the ARM Mobile Facility deployment to Ascension Island for the Layered Atlantic Smoke Interactions with Clouds (LASIC) field campaign. Data from the South Atlantic Ocean field campaign are available from October 2016 to February 2017. WACR-ARSCL…

  • Aerosol Optical Properties VAP Now Available

    The Aerosol Optical Properties (AOP) value-added product (VAP) is now available, featuring fully corrected aerosol scattering and absorption measurements from all ARM Aerosol Observing System (AOS) deployments within the past two years. The AOP 1-minute VAP provides 60-second averages of a fully corrected set of aerosol extensive properties—scattering and absorption—with consistent intensive properties (angstrom exponents,…